Worker-cylinder for machines for pulling, tearing, &amp;c., cop-waste, &amp;c.



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H'. A. WILLIAMS. WORKER CYLINDER'FOR MACHINES PoR PULLING, TEARIN COP WASTE, &o. APPLIoATIoN y'J-QBD Armas, 1905.

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WITNEEEEa A UNITED 1 STAT-s PATENT OFFICE. v'

WORKER-CYLINDER FOR MAcHiNEs FOR' PULLING, YThEARlNe, ac., coP-wAsTsac.

Specification yof Iaetters Patent.

Patented March 20, 1906 Application filed April 25, 1905. Serial No. 257,366.

To @ZZ whom t may concern:

Be it known that I, HENRY ALEXIS WIL- LIAMs, a citizen ofthe United States, residing at Wollaston, inthe county of' Norfolk and.

State of Massachusetts,haveinvented certain Improvements in Worker-Cylinders for.

Machines for Pulling, Tearing, or Picking Cop-Waste and otherFibrous Materials, of

i which the following is a specification.

- cifically pointed out in the claims.

The worker-cylinders of machines for pulling, tearing, or picking cop-waste and other fibrous materials as heretofore constructed have consisted of a Wooden cylinder provided with lrows of pointed teeth inserted therein by driving them into holes or mortises made for their reception. made are, however, objectionable, for the reason that the severe strain to'which they are subjected soon causes the wood to split when the teeth become loose and fall out, rendering the cylinder inoperative and of no further use.

To obviate this difficulty and to produce a strong and durable worker-cylinder having teeth .which canbe readily removed and replaced when worn out or injured is the object of my invention, which consists in a Workercylinder comprising a cylindrical core having a series of removable rings fitted thereupon, removable teeth arranged between said rings, and means for securely holding said teeth in place, as hereinafter described; and my invention furthermore consists in certain novel features and details of construction, as hereinafter described, and spe- In the accompanying drawings, Figure 1 is a side elevation of a worker-cylinder constructed lin accordance with my invention. Fig. 2 vis a central longitudinal section of the same. Fig. 3 is a transverse vertical section on the line 3 3 of Fig. 1. Fig. 4 is a perspective view of one of the rings which form theoutside of the cylinder. Fig. 5 is a plan view of the same, showing its opposite side. Fig. 6is an enlarged view of one of the'picke'rteeth. Figs. 7 and 8 are views of fragments of rings, showin dierent means for securely locking the teet in place between the rings. Fig. 9 is a section on the line 9 9 of Fig. 8.

Referring to the drawings,l A representsfa cylindrical core, preferably composed of a vmetal tube or shellprovided at its ends with heads 10, centrally through which passes a shaft 12, the ends of which form suitable journals for supporting-the cylinder'. Upon Cylinders sol this core A are snugly fitted in close contact with each other a series of narrow removable rings B, the two end rings being interiorly threaded to fit correspondingly-threaded portions 15 16 at the opposite ends of the core A,

the ring at the right-hand end of the cylinder being adapted to be turned by a suitable wrench applied to holes a, whereby it maybe screwed up against the next ring in order to tightly clamp the entire series in contact with each other upon the core, said rings, eX- cept the one at the right-hand end of the cylinder, being prevented from turning independently of the core by a longitudinal key 18, fitting a groove or keyway 19 in the core,

and a corresponding slot or groove'20 in each of the rings B, with the exceptionl ofthe screw-threaded one at the right-hand end-'of the cylinder, which, as before stated, is used to clamp' the rings tightly together. Between the rings B are placed a seriesA of removable radially-arranged pointed pickerteeth C of curved or other suitable shape, each tooth being placed within a radial groove 21, formed in one of the side faces of the ring to which itis applied,l as shown particularly in Figs. 3 and 4, with its base preferably resting against the core A, the depth of the grooves 21 being equal to the thickness of the teeth, so that the latter may lie flush with the surface of the ring.

an annular bead or projection 22 and on the opposite side with an annular groove 23, of

less depth than the radial groove 21, forthe reception of the annular bead or projection V 22 on the opposing face of the adjoining ring, said bead entering a notch or groove24 in each of the teeth C, lying within the several grooves 21 of the ring, whereby said teeth are securely locked in place, so that it will be impossible for them to be withdrawn or become loosened. until the two rings between which they are held are separated from each other, which can be readily accomplished when a tooth becomes worn out or injured and requires tobe replaced, it beingmerely necessary to unscrew and remove the ring at the right-hand end of the cylinder and lift o the rings until theidesired tooth or teethare reached, after which new teeth can be in- IOO serted andthe rings replaced and clamped to- ITO within the radial grooves 21 of the rings B, as

other modes of yfastening and locking the teeth in place may be employed Without departing from the spirit of my invention. In Figs. 8 and 9 is shown a tooth having a beveled head or shoulder 25 at its base, Which is adapted to rit a correspondingly-shaped recess 26 at the inner end of the groove 21 of the ring B, Within Which it is placed, and in Fig. 7 is shown a tooth having a hole 27 for the reception of a pin 28, projecting up from the bottom of the groove 21, into Which the tooth is iitted. These locking devices Will both accomplish the desired end; but I prefer that first above described, as it is the simplest bead or projection formed on one face of each ring and adapted to it Within an annular groove in the opposing face of the adjoining ring, said annular bead entering a notch in each of the teeth lying Within the radial grooves of the ring to which they are applied.

2. In a cylinder of the character described, the combination with a cylindrical core, of a series of removable rings mounted thereupon and keyed thereto, and provided with radial grooves in their side faces and With an annular bead or projection on one side and an annular groove on the opposite side, the two end rings being interiorly threaded and screwed upon the correspondingly-threaded ends of the core, removable pickerteeth placed Within the radial grooves of said rings and each provided With a notch to receive the annular bead or projection ol the adjoining ring, whereby said teeth are securel)T locked in place Within said radial grooves.

Witness my hand this 24th day of' April, A. D. 1905.

HENRY ALEXIS WILLIAMS. In presence of P. E. TESCHEMACHER, G. A. HIGGINS. 

